I imagine it did feel good to people whose withholding went down. However, if they had bothered to look at all at the details, they would have had a hissy fit, and increased their withholding.
The personal exemption in 2017 was around $4000, and the standard deduction was around $14,000. So a family with 2 children had exemptions of $16,000 and needed over $14,000 in deductions to itemize. That could be easily met if they have a mortgage, property taxes and maybe state and/or local income taxes. With the standard deduction they get $30,000 off their taxable income.
The 2018 changes removed the personal exemption and raised the standard deduction to $24,000. Now that family has to have over $30,000 in itemized deductions in order to have the same taxable income as in 2017.
A third child screws their taxes even worse. This arithmetic should have been front page headlines the day that the Republicans rammed that bill through. As I said in my previous post, we must vote every Republican out of Congress.
You're right that a lot of people have an emotional response to tax law. But taxes are numbers, not emotions.